PCGame

Defend Your Life: TD

Tower defense against bacteria and viruses inside the human body

Alda Games · Released Apr 10, 2015

ActionCasualIndieStrategy

Reviews
Very Positive
82% of 597
Recent reviews
Not enough recent
Players
1
daily peak, Oct 31, 2026
Steam Deck
Untested
Last update on Steam
11 years ago
May 15, 2015
Minimum PC
OpenGL 3.0 compliant with…
1 GB RAM · 0.4 GB disk
Full requirements

What is Defend Your Life: TD?

A 2D, single-player tower defense game with 17 levels set in organs such as the heart and brain. You build and upgrade attacking and support towers, command heroes and platelet soldiers, and use bombs, electric shocks, and adrenaline boosts to stop invading diseases.

For you if...

  • +you like combining tower planning with manually activated abilities
  • +you enjoy revisiting levels on different difficulty settings

Not for you if...

  • −you want new mechanics rather than familiar tower defense
  • −you prefer cooperative battles to a single-player campaign

What players say

82% of 597 reviews are positive

Players praise the cartoon artwork and body-themed setting. The main complaints concern steep difficulty and grinding earlier levels for supplies and hero experience.

Screenshots and trailer

Defend Your Life: TD screenshot 1

Defend Your Life: TD system requirements

Minimum: OpenGL 3.0 compliant with…, 1 GB RAM, 0.4 GB of disk space.

As published by the developer.

Can my PC run Defend Your Life: TD?

Tell us your graphics card once and every game page will answer this for you.

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Minimum

OS
Windows XP Service Pack 3
Processor
Dual Core CPU
Graphics
OpenGL 3.0 compliant with 512MB of video RAM.
Memory
1 GB RAM
Storage
400 MB available space

Recommended

OS
Windows XP Service Pack 3
Processor
Dual Core CPU
Graphics
OpenGL 3.0 compliant with 1.0GB of video RAM.
Memory
2 GB RAM
Storage
400 MB available space

Does Defend Your Life: TD have co-op or multiplayer?

No: single-player only, no multiplayer modes declared.

Does Defend Your Life: TD run on Steam Deck?

Untested Not yet tested by Valve on Steam Deck.

PC version details

DRM
None declared on Steam
Controller
Keyboard and mouse
Platforms
Windows, macOS, Linux
Achievements
20
Steam features
Family Sharing, Trading cards
Languages
Full audio: English. Text only: French, Italian, German, Spanish - Spain, Czech, Japanese, Portuguese - Portugal, Russian, Simplified Chinese.

Does Defend Your Life: TD use AI-generated content?

No AI-generated content is disclosed on the game's Steam page.

Self-reported by the developer under Steam rules: it covers AI content that ships in the game, not tools used to make it. Steam page checked on Oct 27, 2026. How to filter AI games on Steam

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